Abstract
We calculateg 0/e whereg 0 is the strength of an elementary magnetic monopole ande the charge on the electron, in terms of a ratio of loop sizes in the twisted and untwisted principal fiber bundles withU(1) the structure group andR 3-{0} the base space. The result involves the present distance around theU(1) space and, rather surprisingly, the structure of the quantum gravitational vacuum. Combining our result with the expression foreg 0 from the Dirac quantization condition gives a final estimate for the fine structure constant,α∼1/100.
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Ross, D.K. An estimation of the fine structure constant using fiber bundles. Int J Theor Phys 25, 1–6 (1986). https://doi.org/10.1007/BF00669711
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DOI: https://doi.org/10.1007/BF00669711